LG620g Enter Unlock Code

Is there any body who can tell me how can i enter unlock code in LG620g .

I do this

How to Unlock LG g620 unlock 1. Insert original sim card and turn phone on.
2. Enter 2945#*620#

But failed.

Then i Got this.

1: MENU
2: TOOLS
3: SIM APP.
4: UNLOCK
When we select it it show this

(ICC-ID
8901410321368534430
When select it it show this
IMEI CHECKSUM
9554
When we select it it sow this
RANDOM NUMBER:
15159111 (every time changed)
Then it show

Unlock Code




LG    IMEI:012114004041336    NCK=2907326787212654



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Phone Detailed

<STLG620GB>
FCC ID: BEJLG620G
TRACEFONE WIRELESS, INC
IMEI: 012114-00-868744-9
S/N: 011CQLH868744
LG620GM

MADE IN CHINA

When i power on the phone then it show

LG620G

 1- Insert original SIM card and power on your phone.

2- Dial 2945#*620# on your LG GW620g keypad.

3- Select SIM Unlock.

4- Enter Network Unlock Code and press OK. Phone will restart.

Your phone is unlocked.